In another medium bowl, whisk together buttermilk, maple syrup, and egg. Add to dry ingredients and stir just until incorporated.

Preheat a nonstick griddle over medium to medium-high heat and lightly coat with cooking spray. Drop a scant 1/4 cup full of batter onto the griddle to form round pancakes. Cook until bubbles start to appear on the surface and underneath the pancake is golden brown. Flip pancakes with a spatula and cook until golden brown and the pancakes are cooked through.